对于FFT的蝶形结构

This free cpu-ip! use verilog

verilog实现的简易通用型CPI接口-verilog easy to achieve CPI general-purpose interface

说明：  该模块实现了FPGA的uart串口收发功能(The module realizes UART serial port transceiver function of FPGA)

软件开发环境：ISE 7.1i 仿真环境：ModelSim SE 6.0 1. 多功能数字钟(Software development environment: ISE 7.1i simulation environment: ModelSim SE 6.0 1. Multi-function digital clock)

DDS中的正余弦生成，初始相位相差90度，可自行改变输出频率(Cosine generation of DDS, the initial phase difference of 90 degrees, the output frequency can be changed on their own)

说明：  这是8位CPU的CVDL代码。CPU 的主要功能是执行指令，控制完成计算机的各项操作，包括运算操作、传送操作、输入/输出操作等。作为模型计算机设计，将重点放在寄存器级，采取较简单的组成模式，以尽量简洁的设计帮助学生掌握CPU 的基本原理。 此次设计CPU就是为了了解CPU运行的原理，从而完成从指令系统到CPU的设计，并且通过仿真对CPU设计进行正确性评定。(The main function of CPU is to execute instructions, control and complete various operations of computer, including operation, transfer operation, input / output operation, etc. As a model computer design, it focuses on register level and adopts a simpler composition mode to help students master the basic principles of CPU with a concise design as far as possible. This design of CPU is to understand the principle of CPU operation, so as to complete the design from instruction system to CPU, and evaluate the correctness of CPU design through simulation.)

half band filter code

利用fpga实现gmsk的调制并仿真，全部代码(Fpga implements gmsk)

State.Machine.Coding.Styles.for.Synthesis（状态机，英文,VHDL）-State.Machine.Coding.Styles.for.Synthesis (FSM, English, VHDL)

ps2 vga interface in vhdl code